Results 61 to 70 of about 1,886,623 (400)

Symmetry, symmetry breaking, and pion parton distributions [PDF]

open access: yesPhysical Review D, 2019
Pion valence, glue and sea distributions are calculated using a continuum approach to the two valence-body bound-state problem. Since the framework is symmetry preserving, physical features of the distributions are properly expressed.
M. Ding   +5 more
semanticscholar   +1 more source

Time-Reversal Symmetry Breaking and Spontaneous Anomalous Hall Effect in Fermi Fluids

open access: yes, 2008
We study the spontaneous non-magnetic time-reversal symmetry breaking in a two-dimensional Fermi liquid without breaking either the translation symmetry or the U(1) charge symmetry.
E. Fradkin   +4 more
core   +1 more source

Breaking symmetry, breaking ground [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2016
I give a short commentary on a seminal article by T W B Kibble in 1976, "Topology of cosmic domains and strings".
openaire   +4 more sources

Symmetry Breaking in Biology [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2009
Symmetry breaking is essential for cell movement, polarity, and developmental patterning. Amplification of initial asymmetry is key to the conserved mechanisms involved.
Bruce Bowerman, Rong Li
openaire   +3 more sources

Tunneling potentials for the tunneling action: gauge invariance

open access: yesJournal of High Energy Physics, 2022
We formulate a procedure to obtain a gauge-invariant tunneling rate at zero temperature using the recently developed tunneling potential approach. This procedure relies on a consistent power counting in gauge coupling and a derivative expansion.
Suntharan Arunasalam   +1 more
doaj   +1 more source

Observation of parity-time symmetry breaking in a single-spin system [PDF]

open access: yesScience, 2018
Breaking symmetry with single spins The energetics of quantum systems are typically described by Hermitian Hamiltonians. The exploration of non-Hermitian physics in classical parity-time (PT)–symmetric systems has provided fertile theoretical and ...
Yang Wu   +7 more
semanticscholar   +1 more source

Spontaneous Scale Symmetry Breaking in 2+1-Dimensional QED at Both Zero and Finite Temperature [PDF]

open access: yes, 2000
A complete analysis of dynamical scale symmetry breaking in 2+1-dimensional QED at both zero and finite temperature is presented by looking at solutions to the Schwinger-Dyson equation.
Carrington, M. E.   +2 more
core   +2 more sources

Symmetry breaking in driven and strongly damped pendulum

open access: yes, 2004
We examine the conditions for appearance of symmetry breaking bifurcation in damped and periodically driven pendulum in the case of strong damping. We show that symmetry breaking, unlike other nonlinear phenomena, can exist at high dissipation.
A. P. Tetervov   +10 more
core   +1 more source

Division algebraic symmetry breaking

open access: yesPhysics Letters B, 2022
Reframing certain well-known particle models in terms of normed division algebras leads to two new results for BSM physics.(1) We identify a sequence of complex structures which induces a cascade of breaking symmetries: Spin(10) ↦ Pati-Salam ↦ Left-Right
N. Furey, M.J. Hughes
doaj  

Symmetry Restoration and Breaking at Finite Temperature: An Introductory Review

open access: yesSymmetry, 2020
Symmetries at finite temperature are of great importance to understand dynamics of spontaneous symmetry breaking phenomena, especially phase transitions in early Universe.
E. Senaha
semanticscholar   +1 more source

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